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BOSTON MARATHON 2025

Shannon Dillard

Bib: 27220•F

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:13
Rank: #22795
Start → 5K
9:05/mi
28:13 split
10K· 6.21 mi
56:07
Rank: #22550 (+245)
5K → 10K
8:59/mi
27:54 split
15K· 9.32 mi
1:24:26
Rank: #22534 (+16)
10K → 15K
9:07/mi
28:19 split
20K· 12.43 mi
1:53:31
Rank: #22500 (+34)
15K → 20K
9:22/mi
29:05 split
Half· 13.11 mi
2:00:14
Rank: #22651 (-151)
20K → Half
9:51/mi
6:43 split
25K· 15.53 mi
2:24:06
Rank: #22710 (-59)
Half → 25K
9:51/mi
23:52 split
30K· 18.64 mi
2:57:08
Rank: #22811 (-101)
25K → 30K
10:38/mi
33:02 split
20M
3:11:36
Rank: #22806 (+5)
30K → 20M
10:39/mi
14:28 split
21M
3:23:38
Rank: #22859 (-53)
20M → 21M
12:02/mi
12:02 split
35K· 21.75 mi
3:32:02
Rank: #22946 (-87)
21M → 35K
11:14/mi
8:24 split
23M
3:45:52
Rank: #22956 (-10)
35K → 23M
11:03/mi
13:50 split
24M
3:56:38
Rank: #22984 (-28)
23M → 24M
10:46/mi
10:46 split
40K· 24.85 mi
4:06:46
Rank: #23075 (-91)
24M → 40K
11:51/mi
10:08 split
25.2M
4:11:13
Rank: #23108 (-33)
40K → 25.2M
12:54/mi
4:27 split
Finish· 26.22 mi
4:21:35
Rank: #23124 (-16)
25.2M → Finish
10:10/mi
10:22 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:14
Pace9:10 /mi
2nd Half
Distance13.11 mi
Time2:21:21
Pace10:47 /mi
📊Positive Split: 17.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:1128:139:0528:13
9:05
-
10K
6.21 mi12:12:0556:079:0227:54
8:59
-0:06
15K
9.32 mi12:40:241:24:269:0428:19
9:07
+0:08
20K
12.43 mi13:09:291:53:319:0829:05
9:22
+0:15
Half
13.11 mi13:16:122:00:149:106:43
9:51
+0:29
25K
15.53 mi13:40:042:24:069:1723:52
9:51
0:00
30K
18.64 mi14:13:062:57:089:3033:02
10:38
+0:47
20M
20.00 mi14:27:343:11:369:3514:28
10:39
+0:01
21M
21.00 mi14:39:363:23:389:4212:02
12:02
+1:23
35K
21.75 mi14:48:003:32:029:458:24
11:14
-0:48
23M
23.00 mi15:01:503:45:529:4913:50
11:03
-0:11
24M
24.00 mi15:12:363:56:389:5210:46
10:46
-0:17
40K
24.85 mi15:22:444:06:469:5610:08
11:51
+1:05
25.2M
25.20 mi15:27:114:11:139:584:27
12:54
+1:03
Finish
26.22 mi15:37:334:21:359:5910:22
10:10
-2:44

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:59 /mi

Average Pace

9:59 /mi

Slowest Pace

12:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:24:06

55% of race

Time at Steady Pace

1:22:28

32% of race

Time at Slower Pace

35:01

13% of race

Average Pace: 9:59 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:44:1128:139:0528:13
9:05
#22795
10K
6.21 mi12:12:0556:079:0227:54
8:59
#22550
15K
9.32 mi12:40:241:24:269:0428:19
9:07
#22534
20K
12.43 mi13:09:291:53:319:0829:05
9:22
#22500
Half
13.11 mi13:16:122:00:149:106:43
9:51
#22651
25K
15.53 mi13:40:042:24:069:1723:52
9:51
#22710
30K
18.64 mi14:13:062:57:089:3033:02
10:38
#22811
20M
20.00 mi14:27:343:11:369:3514:28
10:39
#22806
21M
21.00 mi14:39:363:23:389:4212:02
12:02
#22859
35K
21.75 mi14:48:003:32:029:458:24
11:14
#22946
23M
23.00 mi15:01:503:45:529:4913:50
11:03
#22956
24M
24.00 mi15:12:363:56:389:5210:46
10:46
#22984
40K
24.85 mi15:22:444:06:469:5610:08
11:51
#23075
25.2M
25.20 mi15:27:114:11:139:584:27
12:54
#23108
Finish
26.22 mi15:37:334:21:359:5910:22
10:10
#23124
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi227959071907122530(Top 79%)8851(Top 72%)8851(Top 162%)
10K6.21 mi3.10 mi22550+2458916+1558916+15522312(Top 79%)8774(Top 72%)8774(Top 160%)
15K9.32 mi3.11 mi22534+168875+418875+4122530(Top 79%)8851(Top 72%)8851(Top 162%)
20K12.43 mi3.11 mi22500+348865+108865+1022458(Top 79%)8843(Top 72%)8843(Top 162%)
Half13.11 mi0.68 mi22651-1518933-688933-6824456(Top 86%)9977(Top 82%)9977(Top 182%)
25K15.53 mi2.42 mi22710-598982-498982-4922888(Top 81%)9138(Top 75%)9138(Top 167%)
30K18.64 mi3.11 mi22811-1019074-929074-9223235(Top 82%)9454(Top 77%)9454(Top 173%)
20M20.00 mi1.36 mi22806+59106-329106-3222821(Top 80%)9327(Top 76%)9327(Top 171%)
21M21.00 mi1.00 mi22859-539154-489154-4823662(Top 83%)9845(Top 81%)9845(Top 180%)
35K21.75 mi0.75 mi22946-879212-589212-5824669(Top 87%)10412(Top 85%)10412(Top 190%)
23M23.00 mi1.25 mi22956-109239-279239-2723360(Top 82%)9787(Top 80%)9787(Top 179%)
24M24.00 mi1.00 mi22984-289282-439282-4323506(Top 83%)9880(Top 81%)9880(Top 181%)
40K24.85 mi0.85 mi23075-919348-669348-6624697(Top 87%)10527(Top 86%)10527(Top 192%)
25.2M25.20 mi0.35 mi23108-339370-229370-2224915(Top 88%)10637(Top 87%)10637(Top 194%)
Finish26.22 mi1.02 mi23124-169389-199389-1923457(Top 83%)9904(Top 81%)9904(Top 181%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21story building
+97ft-345ft

Overall

22530

Females

8851

F18-39

8851

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

22312

Females

8774

F18-39

8774

10K→15K

6.2 - 9.3 mi

Top 79%
×3story building
+67ft-78ft

Overall

22530

Females

8851

F18-39

8851

15K→20K

9.3 - 12.4 mi

Top 79%
×5story building
+106ft-86ft

Overall

22458

Females

8843

F18-39

8843

20K→Half

12.4 - 13.1 mi

Top 86%
×2story building
+19ft-37ft

Overall

24456

Females

9977

F18-39

9977

Half→25K

13.1 - 15.5 mi

Top 81%
×4story building
+66ft-88ft

Overall

22888

Females

9138

F18-39

9138

25K→30K

15.5 - 18.6 mi

Top 82%
×9story building
+181ft-148ft

Overall

23235

Females

9454

F18-39

9454

30K→20M

18.6 - 20.0 mi

Top 80%
×5story building
+64ft-50ft

Overall

22821

Females

9327

F18-39

9327

20M→21M

20.0 - 21.0 mi

Top 83%
×8story building
+106ft-24ft

Overall

23662

Females

9845

F18-39

9845

21M→35K

21.0 - 21.8 mi

Top 87%
×7story building
+17ft-86ft

Overall

24669

Females

10412

F18-39

10412

35K→23M

21.8 - 23.0 mi

Top 82%
×5story building
+23ft-63ft

Overall

23360

Females

9787

F18-39

9787

23M→24M

23.0 - 24.0 mi

Top 83%
×6story building
+12ft-82ft

Overall

23506

Females

9880

F18-39

9880

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

24697

Females

10527

F18-39

10527

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

24915

Females

10637

F18-39

10637

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2story building
+22ft-21ft

Overall

23457

Females

9904

F18-39

9904

Passing Analysis

Category:
Athletes Passed
1346
Passed By
1675
Net Change
-329
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22795
5K → 10K386141+245#22795#22550
10K → 15K189173+16#22550#22534
15K → 20K186152+34#22534#22500
20K → Half8159-151#22500#22651
Half → 25K127186-59#22651#22710
25K → 30K123224-101#22710#22811
30K → 20M8782+5#22811#22806
20M → 21M4699-53#22806#22859
21M → 35K19106-87#22859#22946
35K → 23M6676-10#22946#22956
23M → 24M4472-28#22956#22984
24M → 40K30121-91#22984#23075
40K → 25.2M639-33#23075#23108
25.2M → Finish2945-16#23108#23124
TOTALS13461675-329
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing